

{
    let a=10;
    let b=20;
    let c=a+b;
    console.log(c);
}
{
<html lang="en">
    <head>
        <meta charset="UTF-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <title>Document
            23135432154564453453875437854875687568765
        </title>
    </head>
    <body>

    </body>
</html>
}
